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If prey continues to decline, both the African lion and the Sunda clouded leopard will be at high risk of extinction.

Researchers learn from the past to prepare for the future

Researchers are calling on governments to protect big cat species and their prey, as a new study shows that lions face the same threat as extinct sabre-toothed tigers.

Writing in the journal Ecography, researchers assess whether the Ice Age extinction trend could be applied to big cat populations today.

Using a new global database FelidDET, the team analysed the cause of extinction of seven large cats from the Ice Age, including sabre-toothed tigers, the case and American lion and the American cheetah.

They found that if these animals were alive today, only 25 per cent of their preferred prey species would remain across their former natural ranges. The majority have gone extinct, in part due to human pressure.

The team also used the database to find out if a similar decline in the availability of prey could lead to the demise of some of the world’s best-known big cats. It revealed that if all the currently threatened and declining prey species were to go extinct, just 39 per cent of the African lion’s prey and 37 per cent of Sunda clouded leopards would remain.

Even more concerning, researchers say, is that if this prey loss trend continues, both of these cats will be at high risk of extinction.

“Where prey species have, or are likely to become extinct, this poses a serious risk to the big cat species which feed on them and we now know this is the continuation of an unhappy trend which began during the last Ice Age,” commented Dr Chris Sandom from the University of Sussex.

“We need to buck this Ice Age trend once and for all and to reinforce the urgent need for governments to protect both big cat species and their prey.”

Professor David Macdonald, co-author and director of the University of Oxford’s Wildlife Conservation Research Unit added: “The fairy-tale consequences of Old Mother Hubbard’s cupboard being bare are all too vividly real for modern big cats.

“Our study of the consequences of prey loss – ‘defaunation’ in the jargon - is about, in everyday language 'what if' or perhaps better 'if only': without the extinctions of the Pleistocene, in which the fingerprints of humanity are all to incriminating, there would have been between one and five more felid species in most places today.

“The Churchillian aphorism that those that fail to learn from history are doomed to repeat it was painfully in mind when we saw how many of the prey of lions and East Africa and of clouded leopards in Indo-Malaya look set to go down the same drain down which their counterparts in other regions have already been flushed.”

Natural England has announced a new scheme to improve flood protection, boost wildlife and create 160 hectares of new saltmarsh. The £6 million scheme in Lancashire will effectively unite the RSPB’s Hesketh Out Marsh Reserve and Natural England’s Ribble Estuary National Nature Reserve. The completed reserve will be the largest site of its kind in the north of England.

Students and ethics experts will host an event on the difficult moral challenges facing vets. Ethical issues, such as euthanasia and breeding animals for certain physical traits, will be discussed by prominent speakers including TV vet Emma Milne and RSPCA chief vet James Yeates. Other topics will include how to tackle suspected animal abuse and the extent of surgical intervention.

The conference will look at how these dilemmas affect the wellbeing of vets, and explore how to better prepare veterinary students for work. It will be held at the University of Edinburgh’s Easter Bush Campus from 30 September - 1 October 2017. Tickets can be purchased here.